A patient has been admitted with dehydration and is prescribed IV fluids and medications. Over a 12-hour shift, the following intake and output data are recorded: Intake: 1,000 mL of lactated Ringer's administered via IV over 8 hours. 250 mL of an antibiotic infusion. The patient drank 3 cups of water (1 cup = 240 mL). Output: Urine output was 1,200 mL. The patient vomited 300 mL. Wound drainage amounted to 150 mL. Calculate the net fluid balance.